Exhaust bag of microwave oven
By designing the first edge strip of the microwave oven exhaust bag, including the exhaust area and the sealing area, the burst problem caused by steam accumulation in the sealed packaging bag is solved, and the liquid food is sprayed is reduced, achieving a safer and more convenient microwave heating experience.
Patent Information
- Application Number
- CN202421984626.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-15
AI Technical Summary
When heating food in a microwave oven, steam accumulation in the sealed packaging bag causes an increase in internal pressure, which may cause the packaging bag to burst, affect the heating effect and pose safety hazards. At the same time, the existing exhaust mechanism can easily cause liquid food to be sprayed out and dirty the microwave.
A microwave oven exhaust bag is designed, which includes a specially made first edge strip, including an exhaust zone and two sealing zones. The exhaust area consists of a pore part and a lower edge part, and steam is discharged through the pore part to reduce food residue or liquid food brought out by the steam leakage.
Effectively prevent the packaging bag from exploding due to steam, reduce food residues or liquid food brought out by steam, maintain hygiene in the microwave oven, reduce cleaning frequency, and improve the gas emission effect in the packaging bag.
Smart Images
Figure CN222876680U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of food packaging bags, and in particular to a microwave exhaust bag. Background Art
[0002] Currently, when food is heated in a microwave oven, the moisture in the food will quickly turn into steam. If a sealed packaging bag is used, the steam will accumulate in the bag, causing the internal pressure to increase, which may cause the bag to burst, not only affecting the heating effect of the food, but also causing safety hazards.
[0003] To solve this problem, a venting mechanism is added to the packaging bag design, which can automatically release steam during the heating process, keep the air pressure in the bag stable, and thus avoid bursting, while ensuring that the food is heated evenly, providing a safer and more convenient microwave heating experience. This venting mechanism usually includes setting weak points in specific parts of the packaging bag, such as a V-shaped easy-to-break part, an M-shaped film separation part, or a V-shaped unsealed part. These parts will automatically crack or separate when heated to release the steam in the bag.
[0004] With regard to the above-mentioned related technologies, the weak points of the packaging bag will automatically crack or separate when heated, releasing the steam in the bag, and at the same time, the liquid in the packaging bag will be easily taken out of the packaging bag and sprayed into the microwave oven, which will dirty the inside of the microwave oven; at the same time, the steam in the bag adheres to the outlet, so that the outlet is adsorbed together under the action of water, and the pressure in the bag needs to be increased again to break through the outlet, which may bring out the liquid in the bag into the microwave oven. This method requires users to clean the inside of the microwave oven frequently. Utility Model Content
[0005] In order to improve the gas exhaust effect in the packaging bag and reduce the frequency of cleaning the inside of the microwave oven, the present application provides a microwave oven exhaust bag.
[0006] The present application provides a microwave exhaust bag, which adopts the following technical solution:
[0007] A microwave exhaust bag comprises a bag body, one end of which is open, a first edge sealing strip is arranged at the open end of the bag body, the first edge sealing strip comprises an exhaust area and two sealing areas, the two sealing areas are symmetrically arranged relative to the exhaust area, the exhaust area is composed of an air hole portion and a lower edge sealing portion in order from far to near in terms of distance from the bag body, a side of the exhaust area close to the sealing area is integrally formed with the sealing area, the air hole portion is provided with exhaust holes for connecting the inside and outside of the bag body, the edge sealing strength of the lower edge sealing portion is smaller than that of the sealing area, the width of the exhaust area gradually decreases from the end away from the bag body to the end close to the bag body, and the lower edge sealing portion abuts against the open end of the bag body.
[0008] By adopting the above technical scheme, food is put into the bag through the bag opening, the bag is sealed by the first edge sealing strip, and the exhaust bag is placed in a microwave oven for heating. The steam generated by the temperature rise in the bag will be concentrated in the lower exhaust part and will first break through this part, and then be discharged through the exhaust hole, so as to prevent the bag from bursting due to the steam; the exhaust area is located in the middle of the first edge sealing strip and its width is gradually reduced so that the gap near the bag opening in the exhaust area is smaller, so that the steam can gather in the middle of the bag and rush out from the exhaust hole. After the steam enters the exhaust area from the small gap, the gap in the exhaust area increases, and the steam is discharged from the exhaust hole after the pressure is released, so as to reduce the food residue or liquid food brought out by the steam leakage, improve the gas discharge effect in the packaging bag, maintain the hygiene in the microwave oven, and reduce the frequency of cleaning the microwave oven.
[0009] Optionally, the bag body includes a self-standing portion, which is located at the lower end of the bag body, and is used to place the bag body upright when heated in the microwave oven.
[0010] By adopting the above technical solution, the design of the self-standing part can make the bag body remain upright when heated in the microwave oven, so that the heating is more uniform, and the bag body is not easy to tip over, thereby preventing liquid food from flowing out of the bag body into the microwave oven due to the tipping of the bag body, thereby maintaining the hygiene inside the microwave oven.
[0011] Optionally, the bag body is provided with a first tearing opening near the opening end, and the first tearing opening is located on a side of the sealing area near the bag body.
[0012] By adopting the above technical solution, after the food is heated, the user can easily open the bag body through the first tearing opening and tear off the first edge strip, thereby increasing the convenience of using the exhaust bag.
[0013] Optionally, a second tearing opening is provided at one end of the sealing area away from the bag body, and the second tearing opening is close to a side of the sealing area away from the exhaust area.
[0014] By adopting the above technical solution, when liquid food is stored in the bag, a corner of the first edge strip is torn off at the second tearing edge, so that the user can pour the liquid food out from the tearing edge, eat the liquid food directly or insert a straw to eat the liquid food, thereby increasing the convenience of using the exhaust bag.
[0015] Optionally, a handle is provided on the bag body, and the handle is located on a side of the sealing area close to the bag body.
[0016] By adopting the above technical solution, after heating, the hot food may make the packaging bag become hot, and the user can easily lift and move the bag by the handle, which greatly improves the convenience and safety of use.
[0017] Optionally, an upper edge sealing portion is provided at the upper end of the air hole portion, and the upper edge sealing portion is integrally formed with the sealing area, and the edge sealing strength of the upper edge sealing portion is not less than that of the sealing area.
[0018] By adopting the above technical solution, the sealing strength of the upper edge seal is not less than that of the sealing area, so that steam will not be discharged from the upper edge seal, and food residues or liquid food carried by the steam will not rush out directly from the lower edge seal to the upper edge seal, but will be buffered at the exhaust hole and then discharged from the exhaust hole, thereby reducing food residues or liquid food brought out by steam leakage, maintaining the hygiene inside the microwave oven, and reducing the frequency of cleaning the microwave oven.
[0019] Optionally, a second edge sealing strip is fixedly provided at one end of the sealing area close to the bag body, and the second edge sealing strip is sleeved on the outside of the bag body.
[0020] By adopting the above technical solution, the setting of the second edge sealing strip provides another edge sealing method. The first edge sealing strip and the bag body are two separate individuals. The first edge sealing strip is connected to the bag body through the second edge sealing strip. After the food is put into the bag body, the open end of the bag body is inserted into the second edge sealing strip. At this time, the first edge sealing strip is in a pre-sealed state, and the second edge sealing strip and the bag body are combined into one using an edge sealing device.
[0021] Optionally, the edge sealing strength between the second edge sealing strip and the bag body is not less than the edge sealing strength of the sealing area.
[0022] By adopting the above technical solution, the edge sealing strength between the second edge sealing strip and the bag body is greater than the edge sealing strength of the exhaust area, which can ensure that steam is released preferentially from the designed exhaust area rather than escaping from the second edge sealing strip.
[0023] Optionally, the bag body is any one of a stand-up bag, a three-side sealed bag, a four-side sealed bag, an eight-side sealed bag, a back-sealed bag and a zipper bag.
[0024] By adopting the above technical solution and selecting stand-up bags, three-side-sealed bags, four-side-sealed bags, eight-side-sealed bags or back-sealed bags and zipper bags as the bag body, different functional advantages can be provided according to the characteristics of the product and packaging requirements, thereby meeting the packaging requirements in different scenarios.
[0025] Optionally, the first edge sealing strip may be provided on any side of the bag body.
[0026] By adopting the above technical solution, the edge band can be set on any side of the bag body, and the position of the edge band can be flexibly selected according to the characteristics of the packaging content, the layout of the packaging machine or the brand display requirements to achieve a more optimized packaging design.
[0027] In summary, the present application includes at least one of the following beneficial technical effects:
[0028] 1. Put food into the bag through the bag opening, seal the bag through the first edge seal, and put the exhaust bag into the microwave oven for heating. The steam generated by the temperature rise in the bag will be concentrated in the lower exhaust part and burst through this part first, and then discharged through the exhaust hole to prevent the bag from bursting due to steam. The exhaust area is located in the middle of the first edge seal and its width is gradually reduced so that the gap near the bag opening is smaller, so that the steam can gather in the middle of the bag and rush out from the exhaust hole. After the steam enters the exhaust area from the small gap, the gap in the exhaust area increases, and the steam is discharged from the exhaust hole after the pressure is released, which reduces the food residue or liquid food brought out by the steam leakage, improves the gas discharge effect in the packaging bag, maintains the hygiene in the microwave oven, and reduces the frequency of cleaning the microwave oven.
[0029] 2. The design of the self-standing part can keep the bag upright when heated in the microwave, so that the heating is more uniform and the bag is not easy to tip over, preventing liquid food from flowing out of the bag into the microwave due to the tipping of the bag, thus maintaining the hygiene of the microwave;
[0030] 3. After the food is heated, the user can easily open the bag through the first tear and tear off the first edge strip, which increases the convenience of using the exhaust bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a schematic structural diagram of the microwave oven exhaust bag of embodiment 1.
[0032] Figure 2 It is a schematic structural diagram of the microwave oven exhaust bag of embodiment 2.
[0033] Figure 3 It is a schematic structural diagram of the microwave oven exhaust bag of embodiment 3.
[0034] Figure 4 It is a schematic diagram of the explosion structure of the microwave oven exhaust bag in Example 3.
[0035] Explanation of the accompanying drawings: 1. bag body; 11. first tear; 12. handle; 2. first edge strip; 21. sealing area; 22. exhaust area; 221. upper edge strip; 222. air hole part; 223. lower edge strip; 23. exhaust hole; 24. second tear; 25. tear line; 3. self-supporting part; 4. second edge strip. DETAILED DESCRIPTION
[0036] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0037] Example 1
[0038] This embodiment discloses a microwave oven exhaust bag.
[0039] Reference Figure 1A microwave exhaust bag comprises a bag body 1. One end of the bag body 1 is open for putting food in. A specially designed first edge sealing strip 2 is provided at the open end of the bag body 1, and the first edge sealing strip 2 has both sealing and exhaust functions.
[0040] Reference Figure 1 The first edge strip 2 includes two main parts: an exhaust area 22 and two sealing areas 21. The exhaust area 22 is integrally formed with the sealing area 21 on one side close to the sealing area 21. The exhaust area 22 is composed of a venting portion 222 and a lower edge sealing portion 223 in order from far to near from the bag body 1. The lower edge sealing portion 223 abuts against the opening end of the bag body 1. The venting portion 222 is a two-layer film adsorbed together by static electricity. The edge sealing strength of the lower edge sealing portion 223 is relatively small relative to the sealing area 21, so that the steam can be concentrated in these areas and break through first, and then discharged from the top of the venting portion 222. One or more exhaust holes 23 are provided on the venting portion 222. The function of these holes is to allow the steam generated in the bag body 1 to escape during the heating process, thereby preventing the bag body 1 from bursting due to excessive internal pressure; at the same time, the steam in the bag is attached to the venting portion 222, so that the outlet above the venting portion 222 is adsorbed together under the action of water vapor, and the steam in the bag can be discharged in an orderly manner through the exhaust holes 23.
[0041] Reference Figure 1 The two sealing areas 21 are symmetrically arranged relative to the exhaust area 22, and the width of the exhaust area 22 gradually decreases from the end far away from the bag body 1 to the end close to the bag body 1. This structure can guide the steam to gather in the middle of the bag body 1 and be discharged through the pore part 222, so as to minimize the food residue carried by the steam when escaping.
[0042] The first edge sealing strip 2 can be arranged on any side of the bag body 1, so that the position of the first edge sealing strip 2 can be flexibly selected according to the characteristics of the packaging content, the layout of the packaging machine or the brand display requirements, so as to achieve a more optimized packaging design.
[0043] The implementation principle of this embodiment is as follows: food is put into the bag body 1 through the opening of the bag body 1, the bag body 1 is sealed by the first edge sealing strip 2, and the exhaust bag is put into the microwave oven for heating. The steam generated by the temperature rise in the bag will be concentrated in the lower exhaust part and will first break through this part, and then be discharged through the pore part 222, so as to prevent the bag body 1 from bursting due to the steam; the exhaust area 22 is located in the middle of the first edge sealing strip 2 and its width is gradually reduced so that the gap of the exhaust area 22 close to the opening of the bag body 1 is smaller, so that the steam can gather in the middle of the bag body 1 and rush out from the exhaust hole 23. After the steam enters the exhaust area 22 from the small gap, the gap in the exhaust area 22 increases, and the steam is discharged from the pore part 222 after the pressure is released, so as to reduce the food residue or liquid food brought out by the steam leakage, improve the gas discharge effect in the packaging bag, maintain the hygiene in the microwave oven, and reduce the frequency of cleaning the microwave oven.
[0044] Example 2
[0045] Based on Example 1, this example provides another specific structure of a microwave oven exhaust bag.
[0046] Reference Figure 2 The bag body 1 further comprises a self-standing portion 3, which is located at the lower end of the bag body 1 and is designed to keep the bag body 1 upright when heated in the microwave oven. The advantages of this are obvious: it ensures more uniform heating and prevents the bag body 1 from tipping over and causing liquid food to flow out, thereby keeping the interior of the microwave oven clean.
[0047] In other embodiments, the bag body 1 can also be any one of three-side sealed, four-side sealed, eight-side sealed, back sealed and zippered bags, which can provide different functional advantages according to the characteristics of the product and packaging requirements, thereby meeting the packaging requirements in different scenarios.
[0048] Reference Figure 2 In order to facilitate the user to open the bag body 1 when using, a first tearing opening 11 is provided near the opening of the bag body 1. The first tearing opening 11 is located on the side of the sealing area 21 close to the bag body 1, and the user can easily tear off the bag body 1 and the first edge strip 2 above the first tearing opening 11 through this opening to take out the heated food.
[0049] Reference Figure 2 The sealing area 21 on the first edge strip 2 is also provided with a second tearing opening 24 at the end away from the bag body 1. The second tearing opening 24 is located close to the side of the sealing area 21 away from the exhaust area 22. A corner of the first edge strip 2 and the bag body 1 is torn off along the tearing line 25 from the second tearing opening 24. Its function is to facilitate the user to pour out the liquid food in the bag body 1 or insert a straw for drinking. Such a design increases the diversity and convenience of the exhaust bag.
[0050] Reference Figure 2 The bag body 1 is also provided with a handle 12, which is located on the side of the sealing area 21 close to the bag body 1. The heated food may make the bag body 1 hot to the touch. With this handle 12, the user can easily lift and move the bag body 1, which greatly improves the safety and convenience of use.
[0051] This embodiment can be applied to packaged cooked food and then sold, and users can heat it up at home after purchase; or food can be packed in a food store and then sealed and sold, and the food store can heat it up or users can take it away and heat it up by themselves.
[0052] Example 3
[0053] Based on Example 2, this example provides another specific structure of a microwave oven exhaust bag.
[0054] Reference Figure 3 and Figure 4 The upper end of the air hole portion 222 is provided with an upper sealing portion 221, which is integrally formed with the sealing area 21, and the sealing strength of the upper sealing portion 221 is not less than that of the sealing area 21. The sealing strength of the upper sealing portion 221 is not less than that of the sealing area 21, so the steam will not be discharged from the upper sealing portion 221, and the food residue or liquid food carried by the steam will not rush directly from the lower sealing portion 223 to the upper sealing portion 221, but will be buffered at the exhaust hole 23 and then discharged from the exhaust hole 23, thereby reducing the food residue or liquid food brought by the steam leakage, maintaining the hygiene in the microwave oven, and reducing the frequency of cleaning the microwave oven.
[0055] Reference Figure 3 and Figure 4 A second edge seal 4 is fixedly provided at one end of the sealing area 21 close to the bag body 1, and the edge seal is sleeved on the outside of the bag body 1. Compared with the edge seal of the bag body 1, the bonding strength between the second edge seal 4 and the bag body 1 is greater than the edge seal strength of the exhaust area 22. This design means that when steam accumulates in the bag body 1 and tries to find an outlet, it will be released first through the designed exhaust area 22, rather than escaping through the junction between the second edge seal 4 and the bag body 1.
[0056] Reference Figure 3 and Figure 4 , the second edge strip 4 and the first edge strip 2 can be integrally arranged. In this case, when the user needs to put food into the bag body 1, the food can be put into the bag body 1 first, and then the open end of the bag body 1 can be inserted into the second edge strip 4. At this time, the first edge strip 2 is sealed in advance, and the user only needs to use the edge sealing device to tightly combine the second edge strip 4 with the bag body 1. Such a design simplifies the packaging process while ensuring the quality and effect of the edge sealing. It can be used in food stores or convenience stores to hold and sell food, seal the edges, put them in the microwave for heating, or take them away for users to heat them themselves, and other usage scenarios.
[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A microwave exhaust bag, comprising a bag body (1), characterized in that: One end of the bag body (1) is open, and a first edge sealing strip (2) is provided at the open end of the bag body (1). The first edge sealing strip (2) comprises an exhaust area (22) and two sealing areas (21). The two sealing areas (21) are symmetrically arranged relative to the exhaust area (22). The exhaust area (22) comprises an air hole portion (222) and a lower edge sealing portion (223) in order from far to near in terms of distance from the bag body (1). The exhaust area (22) is formed integrally with the sealing area (21) on a side close to the sealing area (21). The air hole portion (222) is provided with an exhaust hole (23) for connecting the inside and outside of the bag body (1). The edge sealing strength of the lower edge sealing portion (223) is smaller than that of the sealing area (21). The width of the exhaust area (22) gradually decreases from the end away from the bag body (1) to the end close to the bag body (1). The lower edge sealing portion (223) abuts against the open end of the bag body (1). The air hole portion (222) is two layers of film adsorbed together by static electricity.
2. A microwave exhaust bag according to claim 1, characterized in that: The bag body (1) comprises a self-standing portion (3), which is located at the lower end of the bag body (1). The self-standing portion (3) is used to place the bag body (1) upright when heated in a microwave oven.
3. A microwave exhaust bag according to claim 1, characterized in that: The bag body (1) is provided with a first tearing opening (11) near the opening end, and the first tearing opening (11) is located on a side of the sealing area (21) close to the bag body (1).
4. A microwave exhaust bag according to claim 1, characterized in that: A second tearing opening (24) is provided at one end of the sealing area (21) away from the bag body (1), and the second tearing opening (24) is close to a side of the sealing area (21) away from the exhaust area (22).
5. A microwave exhaust bag according to claim 1, characterized in that: The bag body (1) is provided with a handle (12), and the handle (12) is located on a side of the sealing area (21) close to the bag body (1).
6. A microwave exhaust bag according to claim 1, characterized in that: An upper edge sealing portion (221) is provided at the upper end of the pore portion (222); the upper edge sealing portion (221) and the sealing area (21) are integrally formed; and the edge sealing strength of the upper edge sealing portion (221) is not less than that of the sealing area (21).
7. A microwave exhaust bag according to claim 6, characterized in that: A second edge sealing strip (4) is fixedly provided at one end of the sealing area (21) close to the bag body (1), and the second edge sealing strip (4) is sleeved on the outside of the bag body (1).
8. A microwave exhaust bag according to claim 7, characterized in that: The edge sealing strength between the second edge sealing strip (4) and the bag body (1) is not less than the edge sealing strength of the sealing area (21).
9. The microwave exhaust bag according to claim 1, characterized in that: The bag body (1) is any one of a stand-up bag, a three-side sealed bag, a four-side sealed bag, an eight-side sealed bag, a back-sealed bag and a zipper bag.
10. The microwave exhaust bag according to claim 1, characterized in that: The first edge sealing strip (2) can be arranged on any side of the bag body (1).